Sifnah Electrician Service, Evana Roofing & Building, take care of everything related to your roofing project or maintenance. All carried out at a reasonable price. The quality of our work is always first class and with over 30 years in the roofing trade, you can rely on us getting the job done right, first time without any fuss. Sifnah Electrician Service, Evana Roofing & Building, take care of everything related to your roofing project or maintenance. All carried out at a reasonable price. The quality of our work is always first class and with over 30 years in the roofing trade, you can rely on us getting the job done right, first time without any fuss.